伪随机序列(N=4的M序列)的C语言编程实现,可以应用于相关分析法和最小二乘辨识的输入信号。-Pseudo-random sequence (N = 4 M-sequence) of the C programming language, can be used in correlation analysis and least squares identification of the input signal.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001148s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.099646s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001003s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001232s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000895s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003219s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000935s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003866s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016114s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001069s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 137582 [ RunTime:0.021661s ]